chronograf/oauth2/heroku_test.go

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package oauth2_test
import (
"encoding/json"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"github.com/influxdata/chronograf/oauth2"
)
func NewTestTripper(ts *httptest.Server, rt http.RoundTripper) (*TestTripper, error) {
url, err := url.Parse(ts.URL)
if err != nil {
return nil, err
}
return &TestTripper{rt, url}, nil
}
type TestTripper struct {
rt http.RoundTripper
tsURL *url.URL
}
// RoundTrip modifies the Hostname of the incoming request to be directed to the
// test server.
func (tt *TestTripper) RoundTrip(r *http.Request) (*http.Response, error) {
r.URL.Host = tt.tsURL.Host
r.URL.Scheme = tt.tsURL.Scheme
return tt.rt.RoundTrip(r)
}
func Test_Heroku_PrincipalID_ExtractsEmailAddress(t *testing.T) {
t.Parallel()
expected := struct {
Email string `json:"email"`
}{
"martymcfly@example.com",
}
mockAPI := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/account" {
rw.WriteHeader(http.StatusNotFound)
return
}
enc := json.NewEncoder(rw)
rw.WriteHeader(http.StatusOK)
_ = enc.Encode(expected)
}))
defer mockAPI.Close()
prov := oauth2.Heroku{}
tt, err := NewTestTripper(mockAPI, http.DefaultTransport)
if err != nil {
t.Fatal("Error initializing TestTripper: err:", err)
}
tc := &http.Client{
Transport: tt,
}
email, err := prov.PrincipalID(tc)
if err != nil {
t.Fatal("Unexpected error while retrieiving PrincipalID: err:", err)
}
if email != expected.Email {
t.Fatal("Retrieved email was not as expected. Want:", expected.Email, "Got:", email)
}
}